Home / 11,286.71-16,928.13-3,387.08

Finding the Fourth Proportional to 11,286.71, 16,928.13 and 3,387.08

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Solution

The fourth proportional to 11,286.71, 16,928.13 and 3,387.08 is: 5,080.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,286.71 : 16,928.13 = 3,387.08 : x
  2. Step 2: Convert to fraction form
    11,286.71/16,928.13 = 3,387.08/x
  3. Step 3: Cross multiply
    11,286.71x = 16,928.13 × 3,387.08
  4. Step 4: Simplify right side
    11,286.71x = 57,336,985.58
  5. Step 5: Solve for x
    x = 57,336,985.58/11,286.71
  6. Step 6: Final answer
    x = 5,080.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.